RMY TM 9-2805-257-14
AIR FORCE TO 38G2-103-2
NAVY NAVFAC P-8-612-14E
5-5. Direct Support Troubleshooting Procedures. Table 5-1 lists the common malfunctions that may
be found during operation. Refer to symptom index to locate the troubleshooting procedures for the malfunction.
This manual cannot list all malfunctions that may occur, nor all test or inspections and corrective actions. If a
malfunction is not corrected by listed corrective actions, notify your supervisor.
SYMP TOM INDEX
Page
Symptom
Engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 5-2
Engine misses or runs erratically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-2
Engine oil consumption excessive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-3
Engine runs excessively noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-3
Engine will not start or runs erratically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-4
Table 5-1. Direct Support Troubleshooting Procedures.
Malfunction
Test or Inspection
Corrective Action
1. ENGINE FAILS TO START.
Step 1. Inspect and test coils. Measure resistance of primary and secondary windings. Measurements
should be as follows for breaker point coil:
Coil type
Primary windings
Secondary windings
Bendix Corp.
.512 ± .050 ohms
3,300 ± 400 ohms
Colt Industries
.370 ± .025 ohms
8,500 ± 700 ohms
Motor Parts. Inc.
.370 ± .025 ohms
8,500 ± 700 ohms
Step 2. Inspect rotating magnet for corrosion.
Replace rotating magnet if corroded or otherwise damaged (para. 5-19).
2. ENGINE MISSES OR RUNS ERRATICALLY.
Step 1. Check ignition timing (para. 5-9).
Adjust ignition timing (para 5-9).
5-2
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